Finding the Fourth Proportional to 208,213,643.48, 310,458,981.67 and 202,493,137.82
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Solution
The fourth proportional to 208,213,643.48, 310,458,981.67 and 202,493,137.82 is: 301,929,365.97
Step by Step Solution
- Step 1: Write the proportion equation
208,213,643.48 : 310,458,981.67 = 202,493,137.82 : x - Step 2: Convert to fraction form
208,213,643.48/310,458,981.67 = 202,493,137.82/x - Step 3: Cross multiply
208,213,643.48x = 310,458,981.67 × 202,493,137.82 - Step 4: Simplify right side
208,213,643.48x = 62,865,813,360,701,640 - Step 5: Solve for x
x = 62,865,813,360,701,640/208,213,643.48 - Step 6: Final answer
x = 301,929,365.97
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.